| 1 | Middle French | industrieux | — |
| 2 | Latin | industriosus | diligent, active, industrious |
| 3 | Latin | industria | diligence, assiduousness; industry, activity;... |
| 4 | Latin | industrius | active, industrious, assiduous, diligent |
| 5 | Latin | struō | — |
| 6 | Proto-Italic | strowō | pile up; construct, build |
| 7 | Proto-Indo-European | strew- | to spread, to strew |
| 8 | Proto-Indo-European | sterh₃- | to spread, extend, stretch out |
| 9 | Proto-Indo-European | ster- | sterile, infertile |